Because Unicode data always uses an even number of bytes, use caution when you convert binary or varbinary to or from Unicode supported data types. For example, the following conversion does not return a hexadecimal value of 41; it returns 4100: SELECT CAST(CAST(0x41 AS nvarchar) AS varbinary) .
noun. The definition of a module is a standard unit of measurement in building planning, or a detachable part of a whole, or an independent unit that is part of a whole.
1 In mathematics, the term can be used in several different ways. 2  A module over a ring is a generalization of the notion of vector space over a field. 3  Modular lattices are partially ordered sets which generalize the order structure of submodules.he meaning of the word, however, can vary somewhat by context: 1  In biology, modularity is the concept that organisms or metabolic pathways are composed of modules. 2  In construction, modules are a bundle of redundant project components that are produced en masse prior to installation.